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    GeForce GT 640M LE vs Quadro K620M

    If you are going to buy a new graphics card and are choosing between GeForce GT 640M LE and Quadro K620M, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GT 640M LE stacks up against Quadro K620M, check out specs charts below.
    GeForce GT 640M LE Check Price
    Quadro K620M Check Price

    GeForce GT 640M LE and Quadro K620M are Laptop Graphics Cards

    Note: GeForce GT 640M LE and Quadro K620M are only used in laptop graphics. They have lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce GT 640M LE or Quadro K620M here:

    GeForce GT 640M LE Laptops
    Quadro K620M Laptops

    Main Specs

      GeForce GT 640M LE Quadro K620M
    Power consumption (TDP) 20 Watt 30 Watt
    Interface PCIe 2.0 x16 MXM-A (3.0)
    Supplementary power connectors None
    Memory type DDR3\DDR5 DDR3
    Maximum RAM amount 2 GB 2 GB
    Display Connectors No outputs No outputs
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    • Quadro K620M has 50% more power consumption, than GeForce GT 640M LE.
    • GeForce GT 640M LE is connected by PCIe 2.0 x16, and Quadro K620M uses MXM-A (3.0) interface.
    • GeForce GT 640M LE and Quadro K620M have maximum RAM of 2 GB.
    • GeForce GT 640M LE is used in Laptops, and Quadro K620M - in Mobile workstations.
    • GeForce GT 640M LE is build with Fermi / Kepler architecture, and Quadro K620M - with Maxwell.
    • GeForce GT 640M LE and Quadro K620M are manufactured by 28 nm process technology.
    • Memory clock speed of Quadro K620M is 200 MHz higher, than GeForce GT 640M LE.

    Game benchmarks

    high / 1080p 0−1 3−4
    ultra / 1080p − 1−2
    QHD / 1440p 0−1 0−1
    low / 720p 1−2 14−16
    medium / 1080p 0−1 5−6
    The average gaming FPS of Quadro K620M in Assassin's Creed Odyssey is 1400% more, than GeForce GT 640M LE.

    Full Specs

      GeForce GT 640M LE Quadro K620M
    Architecture Fermi / Kepler Maxwell
    Code name N13P-LP GM108
    Type Laptop Mobile workstation
    Release date 22 March 2012 1 March 2015
    Pipelines 384 384
    Core clock speed 1029 MHz
    Boost Clock 1124 MHz
    Transistor count 585 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 17.98
    Floating-point performance 384.0 gflops 863.2 gflops
    Memory bus width 128bit 64 Bit
    Memory clock speed 1800 - 4000 MHz 2000 MHz
    Memory bandwidth 14.4 GB/s
    Shared memory - -
    DirectX 12 API 12
    Shader Model 5.1 5
    OpenGL 4.5 4.5
    OpenCL 1.1 1.2
    Vulkan N/A 1.1.126
    CUDA + +
    CUDA cores Up to 384
    Bus support PCI Express 2.0, PCI Express 3.0
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 14 Mh/s 92 Mh/s
    Laptop size medium sized
    Optimus + +
    Display Port 1.2
    nView Display Management +
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